A new droop control method for the autonomous operation of distributed energy resource interface converters

  • Chia Tse Lee*
  • , Chia Chi Chu
  • , Po Tai Cheng
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

65 Scopus citations

Abstract

Microgrid is widely accepted as an effective mean of integrating various distributed energy resources (DERs) through their interface converters to provide electric power of high quality and reliability. These distributed resources interface converters (DICs) are required to operate in an autonomous fashion without any communication for enhanced reliability. Conventionally, the real power-frequency droop control and the reactive power-voltage droop are adopted as the de-centralized control strategies in these DICs for the autonomous power sharing operations. However, the reactive power sharing of Q-V droop control often deteriorates if there are mismatched transmission line impedance characteristics. In this paper, a Q-V dot droop control method with V dot restoration mechanism is proposed to improve the sharing of reactive power. Its operation principle and control method are explained and analyzed. In addition, simulation and experimental results are presented to validate the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings
Pages702-709
Number of pages8
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Atlanta, GA, United States
Duration: 12 09 201016 09 2010

Publication series

Name2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

Conference

Conference2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010
Country/TerritoryUnited States
CityAtlanta, GA
Period12/09/1016/09/10

Keywords

  • Distributed generation systems
  • Droop control
  • Microgrid

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